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4173121-2068 — PIN,SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4173121-2068: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-161-9154, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4173121-2068
NSN: 5315-01-161-9154
NIINs: 011619154, 015994858
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5315-01-161-9154
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4173121-2068 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXPANDED DIAMETER: 0.130 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: COILED
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SHEAR STRENGTH: 2100 DOUBLE POUNDS PER SQUARE INCH
•
MATERIAL: STEEL COMP 302 OVERALL
TECHNICAL CHARACTERISTICS
EXPANDED DIAMETER0.130 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORCOILED
DIAMETER0.125 INCHES NOMINAL IN
OVERALL LENGTH0.688 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
SHEAR STRENGTH2100 DOUBLE POUNDS PER SQUARE INCH
MATERIALSTEEL COMP 302 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
280039 ITEM 92Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
281539-0001 ITEM 93Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4173121-2068?
4173121-2068 is a PIN,SPRING.
What parts can replace 4173121-2068?
There are 2 known substitutes for 4173121-2068: 280039 ITEM 92, 281539-0001 ITEM 93. Substitute compatibility should be verified for your specific system.
What is the NSN for 4173121-2068?
4173121-2068 is cataloged in the U.S. Government catalog under NSN 5315-01-161-9154. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.